Alfonso suffered from diabetes and she was convinced the condition could prove fatal in captivity.
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He said the women could remember being outside only twice during their entire time in captivity.
Tomba said the women could remember being outside only twice during their time in captivity.
Dr Pollick and Dr de Waal studied four groups of apes held in captivity.
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There is no escaping it: We ourselves become captives whenever we hold another in captivity.
Foxes, even those raised in captivity, are very hostile to humans and difficult to handle.
Today, the Whooping Crane population numbers more than 600, either in the wild or in captivity.
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He was housed with another male wallaby of the same age, which remains in captivity.
But they're endangered, so it's pretty remarkable that the Nashville Zoo successfully bred one in captivity.
Late Wednesday, some who knew the lion, who had been raised in captivity, were shocked.
Many animal welfare organisations argue that the capturing and keeping of dolphins in captivity is cruel.
It feels wrong to be doing all this side stuff while my friends languish in captivity.
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The 28-year-old American says she never knew where she was held in captivity.
Ms Kampusch, now 25, has said that she never saw anyone else during her time in captivity.
However, some animal welfare organisations, including Advocate for Animals, have "strongly criticised" the zoo's plans to start breeding in captivity.
They showed signs of physical abuse and illness after their time in captivity, the International Maritime Bureau said.
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Tests on the animal revealed it had probably spent some time in captivity before escaping or being set free.
During Carroll's months in captivity, she had appeared twice in videos broadcast on Arab television, pleading for her life.
Primates held in captivity are at increased risk of death from heart-related disease.
In captivity, polar bears can live until they are about 30 years old.
Stephen McFaul had managed to contact his relatives twice before while in captivity.
But Johanna Tabin, a psychologist in Glencoe, Illinois, said Dugard's readjustment will depend on how she was treated in captivity.
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She may be the oldest chimpanzee in captivity but she does not look her age when compared to other chimpanzees.
Last year, his Australian lawyer Melinda Taylor was held for three weeks by militias after she visited him in captivity.
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Keiko rose to fame starring in the children's movies Free Willy, in which he played an orca kept in captivity.
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Their food in captivity is a mixture of cuttlebone, porridge oats, grass pellets, trout pellets and additional vitamin supplements .
Scientists were hoping early next year to reintroduce five other birds into the area which have been raised in captivity.
Fifa said it will hold a ceremony on the island, where Mandela spent 18 of his 27 years in captivity.
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"In captivity, white lions are ambassadors for their species, helping to raise important funds for conservation projects overseas, " the wildlife park said.
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The prisoner's family members say his health has suffered in captivity, and both his mother and one of his daughters have cancer.
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